Inga Rune-Eyes

When Inga Rune-Eyes enters, scry 3.
When Inga Rune-Eyes dies, draw three cards if three or more creatures died this turn.

Each path ever charted by an Omenseeker is etched into her eyes.

Commander Masters

When Inga Rune-Eyes enters the battlefield, scry 3.
When Inga Rune-Eyes dies, draw three cards if three or more creatures died this turn.

Multiverse Legends

Her fleet bore countless survivors to safety, slipping swiftly through strange currents no Phyrexian could track.

The last ability will count any creature that died, no matter who controlled it.

The number of creatures that have died that turn is checked as the last ability resolves. Inga Rune-Eyes will count, as will creatures that die at the same time as Inga Rune-Eyes and creatures that die while that ability is on the stack but has not yet resolved.